Frame for respiratory mask



FIG. 1 is a front perspective view of a frame for a respiratory mask according to our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a rear perspective view thereof; and,

FIG. 5 is a right side view thereof.

The broken (dash-dash) lines showing environment or structure are for illustrative purposes only and form no part of the claimed design.

Where included, dotted lines represent the border between claimed and unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a frame for respiratory mask, as shown and described. 